Tronsmart Onyx Ace Pro True Wireless Earphones

 A. Put both earbuds into the charging case.

 B. Press the reset button for 10s with the case opened.

 Please check if you have connected to a regular charging cable. If not, please charge with different cables to check if it works normally.

 Please check whether the charging case is under fully-charged. If yes, please try to clean the charging contacts with alcohol. If not, please make it fully charged for     a  better experience.

 Yes, you can either earbud in mono mode but kindly note that the volume cannot be adjusted.

 Yes, Tronsmart Onyx Ace Pro has volume and Google Assistant control. You can press either earbud once to adjust the volume and triple tap the right earbud to   activate voice assistant.

 Yes, dual mics each with cVc 8.0 call reduction effectively detects and quells background noise, offering an ultra crystal clear call.

 No, it isn’t compatible with wireless charging.

 A single charge enables 6.5 hours of playtime and a total of 27 hours with the charging case.

 Yes, it has apt X adaptive, apt X, AAC and SBC audio codec.

 48 x 23 x 57.5 mm / 1.89 x 0.9 x 2.26 inches.